Venting-valve for radiators.



PATENTBD SEPT. 17, 1907.

- L. maeemzswon. VENTIN-G VALVE FOR R-ADIAIORS.

APPLIOATION rmm M119, 1901.

PATENT OFFICE.

LEWIS WATSON EGGLESTON, OF APPLETON, WISCONSIN.

' VENTING-VALVE FOR RADIATORS.

Specification of Letters. Patent:

Patented Sept. 17, 1907.

Application filedJanuary 19,1907. Serial No. 353,099.

To all whom it may concern:

Be it knownthat I, LEWIS WATSON EocLns'roN, a citizen of the UnitedStates, and a resident of Appleton, in the county of Outagamie and Stateof Wisconsin, have invented certain new and useful Improvements inVenting-Valves for Radiators, of which the following, when taken inconnection with the drawing accompanying and forming a part hereof, is afull and complete specification, suflicient to enable those skilled inthe art to which it pertains to understand, make, and use the same.

This invention relates to valves attached to radiators, to automaticallyvent such radiators of the air which, at times, collects therein,withoht permitting water or steam to flow from the radiatortherethrough.

The device illustrated by the drawing referred to is particularlyapplicable to hot water radiators; and the object of the invention is toobtain aventing valve which will .be economical in construction; simplein arrangement of parts and not liable to get out of order; which willnot permit leakage of water therethrough and will permit the placing ofa top or slab onthe radiator to extend over the ends thereof withoutremoval of the valve therefrom.

Figure l of the drawing is an elevation of a portion of the upper partof the end sections of a hot water radiator, with a device embodyingthis invention attached thereto, such device showingin end elevation.Fig. 2 is a front elevation, on an enlargedscale from Fig. 1, of adevice embodying this invention. Fig. 3 is a longitudinal section online 3-3 of Fig. 1, viewed in the direction indicated by the arrows.Fig. 4 is a transverse section. on lines 44 of Fig. 2, viewed in thedirection indicated by the arrows. Fig. 5 is a side elevation, on ascale enlarged from Figs. 1 to 4 inclusive, of the valve and valve stemof the device, Fig. 6 is a top plan of the valve and valve stem of thedevice on the same scale as such valve and stem are shown in Fig. 5. AndFig. 7 is a fragmentary longitudinal section of a modified constructionof a device embodying this invention.

A reference letter applied to designate a given part is used to indicatesuch part throughout the several figures of the drawing wherever thesame appears.

A is a radiator member.

B is the shell of the apparatus embodying this invention, such shellcomprising a cylindrical portion and the ends I), b. Such ends andcylindrical portion are, of course, secured together so that there willbe no leakage of air, water or steam at the junction thereof from theshell B.

G is the stem of the shell B and is screw threaded in the ordinary wayto engage with corresponding threads and form the means of attachment ofthe device to a radiator member. The stem 0 is provided with passage wayD therethrough, such passage way,

when the device is attached to a radiator member, communicating with theinterior of the radiator and with float chamber E in shell B to form theinlet to such chamber.

F is the outlet of chamber E.

G is a float provided with projections H, h, and I, I.

J isan armwhich I prefer to rigidly-attach to end I) of the shell. Arm Jmay be provided with an aperture near one end thereof throughwhichaperture the projection H extends when the several parts forming thedevice areassembled and such armJ and projection H form the fulcrum onwhich the float G rocks as the end 9 of such float rises as the chamberE ispartially filled with water flowing thereinto from the radiatorthrough the inlet D. I

K is a valve'stem provided at one end thereof with aperture 70, and atthe other end with valve k4 Projection h on float G extends through holeor aperture is on valve stem=K whenthe several parts of the device areassembled, and when the end 9 of the float G is raised by water inchamber E of the shell the valve 7c is forced longitudinally forward onto the seat f of outlet F, to close such outlet. In Fig. 3 float G isshown'with end g about midway of its upward travel, at which time valveis is nearly seated to close the outlet.

Projections I, I, serve as guides to limit the side or rolling movementof float G as it rocks on its fulcrum on opening and closing the outletF. The specific gravity of the float between the fulcrumed point thereofand end gis considerably less than that of water of condensation, whilethe specific gravity of end g thereof is considerably greater than thatof water of condon sation, so that the float is easily rocked on itsfulcrum to seat the valve 7c bywater entering the float chamber throughthe inlet thereof, and but little Water is required therefor in suchchamber E. By constructing the two ends of the float of differentspecific gravities quick closing of the valve on the valve seat of theoutlet is obtained, and after the water has closed the valve to its seatadditional water in the float chamber exerts additional pressure on theseated valve. By placing the valve stem K, in a substantially horizontalplane as shown, with one end thereof supported on the float G, at apoint substantially over the fulcrum of the float, the weight of thevalve stem imposes no substantial obstruction to the movement. of thefloat. By the closing of the valve on its seat in this manner and theholding it to its seat as shown it occurs that even if the float chamberis completely filled with water there is no leakage thereof through theoutlet.

The cylinder of the shell B being horizontal and the outlet F beingplaced at the end thereof, all as shown, no portion of the device comesabove the top of the radiator members, and hence a shelf or otherarticle may be placed on the top of the radiator and extend beyond theends thereof Without requiring the removal of the valve therefrom.

By reference to Fig. 3 it will be seen that all the operative parts ofthe valve are mounted on end b when the parts of the valve areassembled, and that thereafter such end b may be put into place in theend of the cylindrical portion oi the shell and securedf The projectionH may be made so long that it comes in contact with the bottom of theshell B, so that the float turns on such projection H, if preferred, inwhich case bar J is a guide for such projection H. This construction isillustrated in Fig. 7, of the drawing.

Having thus described my invention what I claim is new and desire tosecure by Letters Patent is 1. In a venting valve for radiators, a shellconsisting of end and connecting side walls, and provided with a floatchamber and an inlet and outlet to the chamber, such outlet located inone of the end walls of the shell and provided with a valve seat andsuch inlet arranged to discharge into the float chamber near the bottomthereof, in combination with a float, a fulcrum located between the endsof the float and such float movable on the fulcrum, a valve stemprovided with a valve arranged to co act with the valve seat, and asupporting connection between the valve stem and the float the severalparts being so associated that the point of support of the valve stemupon the float is substantially over the fulcrum; substan tially asdescribed.

2. In a venting valve for radiators, a shell consisting of a cylindricalportion having closed ends, and provided with a float chamber and aninlet and outlet to the chamber, such outlet provided with a valve seatand such inlet arranged to discharge into the float chamber near thebottom thereof when the axis of the cylindrical portion of the shell isin a horizontal plane, in combination with a float, a fulcrum locatedunderneath the float and such float movable on the fulcrum, the specificgravity of the float on one side of a vertical plane extending throughthe fulcrum greater than the specific gravity of the float on the otherside of such vertical plane, a valve stem provided with a valve arrangedto co-act with the valve seat, and a supporting connection between thevalve stem and the float such connection located substantially over thefulcrum, of the float; substantially as described.

3. In a venting valve for radiators, a shell consisting of a cylindricalportion having closed ends, and provided with a float chamber and aninlet and outlet to the chamber, such outlet provided with a valve seatand such invlet arranged to discharge into the float chamber near thebottom thereof when the axis of the cylindrical portion of the shell isin a horizontal plane, in combination with a float, a bar rigidlyattached to one end of the shell, such bar provided with an aperturetherein, a projection on the float between the ends thereof, suchprojection fitting loosely in the aperture in the bar, to form thefulcrum of the float, such float constructed so that the specificgravity on one side of a vertical plane extending through the fulcrumand float is greater than the specific gravity thereof on the other sideof such vertical plane, a valve stem provided with a valve arranged toco-act with the valve seat, and a supporting connection between thevalve stem and the float such connection located substantially over thefulcrum of the float; substantially as described.

l. In a venting valve for radiators a shell provided with end and sidewalls and with a float chamber having an inlet and an outlet, suchoutlet located in an end wall, and provided with a valve seat and suchinlet located in the side wall of the shell and arranged to dischargeinto the float chamber near the bottom thereof, in combination with afloat, a valve stem provided with a valve arranged to coact with thevalve seat ef.the outlet, a supporting connection between the valve stemand the float, such connection located substantially over the fulcrum ofthe float, and a fulcrum located underneath the float and between theends thereof, such float movable on the fulcrum and a guide to suchfulcrum mounted on the end wall in which the outlet is placed;substantially as described.

5. In a venting valve for radiators a shell consisting of end andconnecting walls, such shell provided with a float chamber having aninlet and an outlet, such outlet lo cated in one of the ends of theshell and provided with a valve seat and such inlet arranged todischarge into the float chamber near the bottom thereof, in combinationwith a float, a valve stem provided with a valve arranged to co-act withthe valve seat of the outlet, a supporting connection between the valvestem and the float, such valve stein and float arranged so that one endof the valve stem rests on the float and operatively associated so thatthe end of the valve stem which is adjacent to the float issubstantially over the fulcrum thereof and not appreciably raised by themovement of such-float, and a fill crum located underneath the float andbetween the ends thereof; substantially as described.

Signed at Chicago, 111., this 17th day of January, 1907.

LEWIS WATSON EGGLESTON.

In presence of CHARLES TURNER Bnown, Com A. Amius.

